Cisco L-FLSASR903-1588 ASR 903 IEEE 1588-2008 BC/MC E-Delivery License

About This Product

Buy Cisco L-FLSASR903-1588 | ASR 903 IEEE 1588-2008 BC/MC Precision Timing License | E-Delivery

This license on sale are available exclusively Traditional License.

The L-FLSASR903-1588 is the Cisco ASR 903 IEEE 1588-2008 Boundary Clock / Master Clock License — the advanced timing license for the Cisco ASR 903 Series Router. This Cisco ASR 903 PTP BC/MC license enables full IEEE 1588v2 Precision Time Protocol capabilities, including Ordinary Clock, Boundary Clock, Master Clock, and Transparent Clock (end-to-end) over Ethernet, IP, and MPLS networks. For telecommunications providers, mobile operators, and service providers requiring sub-microsecond timing accuracy for LTE/5G mobile backhaul, this license is essential.

Also referenced as FLSASR903-1588 or FLSASR903-1588=, this Cisco ASR 903 1588 BC/MC e-delivery license is a perpetual, feature-based license that supports ITU-T G.8265.1 (frequency) and G.8275.2 (phase/time) telecom profiles, making it compliant with both 4G LTE and 5G NR timing requirements. Includes SyncE with ESMC (G.8261/G.8262/G.8264), hybrid clocking, hop-by-hop PTP redundancy, and redundant PTP master support. The e-delivery L- version replaces the end-of-sale paper PAK (FLSASR903-1588=, EOS September 2017).

✅ Key Features

• • IEEE 1588-2008 Ordinary Clock — PTP slave/client over Ethernet, IP, and MPLS networks for sub-microsecond synchronization
• • Boundary Clock and Master Clock — terminates PTP flows and re-originates them; can serve as grandmaster-capable clock source
• • Transparent Clock (end-to-end) — compensates for switch/router latency, maintaining timing accuracy across multi-hop networks
• • ITU-T G.8265.1 & G.8275.2 compliant — supports telecom frequency profile and phase/time profile for LTE and 5G NR deployments
• • SyncE with ESMC — Synchronous Ethernet per G.8261/G.8262/G.8264 with Ethernet Synchronization Messaging Channel
• • Hop-by-hop PTP redundancy — redundant PTP master support with hybrid clocking for carrier-grade timing reliability
• • Perpetual license — one-time purchase with no recurring subscription or annual renewal fee

Compatible Platform

The FLSASR903-1588 PTP timing license is exclusively compatible with the Cisco ASR 903 Series Router (all chassis variants). Requires Cisco IOS-XE. This is a feature license that stacks on top of the base ASR 903 software image. The e-delivery version (L-FLSASR903-1588=) replaces the end-of-sale paper PAK (FLSASR903-1588=). For similar timing licenses on other ASR 900 platforms, consult the corresponding SKU (e.g., FLSA901-1588 for ASR 901, FLSASR902-1588 for ASR 902, FLSASR907-1588 for ASR 907).

Information Needed

To generate your license file, please send the output of show license udi from your Cisco ASR 903 router to support@switchlicense.com, or leave a message online after placing your order. The license file is tied to your specific device UDI and cannot be transferred to another unit.

License Delivery

This Cisco software license is delivered electronically. Once your device UDI is confirmed, we will send you the .lic license file by email. No physical shipment is required — simply install the file on your ASR 903 and the IEEE 1588v2 BC/MC/TC timing features are immediately active.

Warranty

We provide a 100% working warranty on all licenses. If the license file does not activate correctly on your device, we will resolve the issue at no additional cost. All payments are processed securely via PayPal for your peace of mind.